Analysis
- max time kernel
141s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
21/06/2024, 01:25
General
- Target SecuriteInfo.com.Win32.Evo-gen.7754.14556.exe
- Size 10.5MB
- Sample240621-bsz44avbrf
- SHA256 86927f648f0d0bfe3653ef5a4f8a8fe4dfbe650bd2698638e9c54435b6e5ccef
Malware Config
Signatures
- Blackmoon, KrBanker
Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.
- Detect Blackmoon payload 1 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Themida packer 4 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Evo-gen.7754.14556.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Evo-gen.7754.14556.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4804-1-0x0000000077674000-0x0000000077676000-memory.dmp
memory/4804-0-0x0000000000400000-0x0000000001B7F000-memory.dmp
memory/4804-2-0x0000000000400000-0x0000000001B7F000-memory.dmp
memory/4804-3-0x0000000000400000-0x0000000001B7F000-memory.dmp
memory/4804-5-0x00000000044A0000-0x00000000044A1000-memory.dmp
memory/4804-6-0x0000000005FA0000-0x0000000005FA1000-memory.dmp
memory/4804-7-0x0000000000400000-0x0000000001B7F000-memory.dmp